Separating and bolting machine.



No. 696,83If I Patented Apr. I; I902. D. W. MARMON.

SEPARATlN-G AND BULTING MACHINE.

(Application filed Sept. 26, 1991.) (No Model.) 2 Sheen-Sheet I.

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No: 696,83l. Patented Apr. ll, I902.

D. W. MARMUN.

SEPARATlNG AND BDLTING MACHINE.

(Application filed Sept. 26, 1901.)

2 Sheets-Shani 2.

(No Model.)

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DANIEL W. MARMON, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO NORDYKE A:MARMON COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

SEPARATING AND BOLTING MACHINE.

sPEGIEIGATIUN forming part of Letters Patent No. 696,881, dated April 1,1902. Application filed September 26, 1901. Serial No. 76625. (Nomodel.)

To all whom it may concern..-

Be it known that I, DANIEL W. MARMoN, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Separating andBolting Machines, of which the following is a specification.

Mypresentinvention consists in certain imro provements in the sieves ofthe machine shown and described in Letters Patent of the United StatesNo. 651,987, issued June 19, 1900, upon the application of Allen 0.Brantingham, whereby I am enabled to embody in the sieves themselves aportion of the egresspassages heretofore formed in the sides or walls ofthe machine and also whereby I am enabled to render the sieves lesssubject to relative displacement under the influence of the weather, or,in other words, to substantially eliminate the disadvantages due toshrinking and swelling of the wood of which the sieve-frames are formed.

Said invention will be first fully described and the novel featuresthereof then pointed out in the claims.

Referring to the accompanying drawings, which are made a part hereof andon which similar reference characters indicate similar 0 parts, Figure 1is a side elevation of a machine of the character in question, a portionof one side being broken away, exposing one of the sets of sieves; Fig.2, a vertical sectional view through several of the sieves and theimmediately adjacent portions of the machine as seen from the dottedline 2 2 in Fig. 1; Fig. 3, a perspective View of several of the sievesin assembled relation; Fig. 4, a plan view of a sieve of one of theforms embodied in my invention; Figs. 5 and 6, sectional views thereof,on an enlarged scale, as seen from the dotted lines 5 5 and 6 6 in Fig.4; Fig. 7, a top or plan View of another of the forms of sieve embodiedin my invention; Fig. 8, a

detail sectional view th ereof, on an enlarged scale, as seen from thedotted line 8 8 in Fig. 7; and Fig. 9 a fragmentary sectional viewthrough a sieve-frame corner, on a still further enlarged scale, as seenfrom the dotted line 9 9 in Fig. t or Fig. 7.

The machine, generally speaking, is simi lar to that shown and describedin the Brantingham patent, No. 651,987, above referred to, and Willnot,therefore, be further described herein except incidentally in describingthe invention. In the machine of said patent the vertical passage-ways(into which the stock being treated is discharged from the sieves) wereall in the frame or shell of the machine. By means of my improvementonly one set of these passage-ways is in the frame or shell of themachine, the other being formed by my peculiar construction of thesieves themselves. As best shown in Figs. 4 and 7, two difierent formsof these sieves are necessary to enable the performance of all thedesired operations. In one of these forms, that shown in Fig. 4c,passage-ways are formed on three sides of the sieves. In the other, thatshown in Fig. 7, passage-ways are formed 011 two sides, while on theother side is a turnoutshelf, by means of which that portion of thestock which comes upon that sieve is shunted off and discharged into thecorresponding passage-way in the frame or shell of the machine.

In detail, the sieve of which Fig. 4 is a plan is composed of the fourouter walls 21, 22, 23, and 24 and three inner walls 25, 26, and 27,with the ordinary imperforate floor 28, the screen-wire floor 29, andthe sieving-cloth 30, arranged in the relation to each other shown, thefloors and sieving-cloth extending to and covering the space between theouter wall 21 and the inner walls 25, 26, and 27. This leavespassage-ways or channels between the outer wall 23 and the inner wall25, the outer wall 24: and the inner wall 26, and the outer wall 22 andthe inner wall 27, respectively. Intermediate separating andstrengthening strips 31, 32, and 33 mayor may not be used, as desired.No such strips should be placed immediately below the strip 33 betweenthe floors 28 and 29, as that would interfere with the discharge of thestock from the sieve. Stay-blocks 34, 35, and 36 are placed in thechannels or sections of passage-ways between the inner and outer wallsopposite the ends of the dividing or partition strips when used.Corner-blocks 37 are placed in the corners of the sieve-frames, betweenthe inner and outer walls, and serve an important purpose, as will bepresently more fully stated. The meeting surfaces of the sieves formwhen as sembled substantially air and dust tight joints, this beingaccomplished by means of suitable packing strips 38 applied to one edgeof each of the sieve-walls. These packing-strips may be of any suitablematerial, but are commonly and preferably of felt or plush.

The sieve illustrated in Figs. 7 and 8 is similar to that shown in Figs.4, 5, and 6, except that at one side it has the turnout-shelf 40, sothat said sieve forms a part of one less passage-way than is included insieves of the other construction.

The method of assembling the sieves in use is illustrated in Fig. 2,where a number of them in various positions are shown. By shifting thepositions of the sieves any desired treatment of the stock can be had,as will be readily apparent, and as many as eight different separationsmay be provided for. Two separations are illustrated in said Fig. 2, oneabout midway vertically at the left of the figure, where the dischargeis into the passage-way formed in the frame or shell of the machine, andthe other at the bottom and right of the figure, where one of the formsof discharge within the structure of the sieve itself is shown. Thearrangement here illustrated is, however, merely one of the many thatmay be employed.

The blocks 37 in the corners of .the sieve structures are formed ofpieces of wood arranged to set on end on each other when the sieves areassembled, thus in effect providing posts extending from the top to thebottom of the pile of sieves, and as wood will shrink but slightly, ifat all, endwise the sieves are thus held accurately in place under allconditions of weather, and the disadvantages incident to the shrinkingand swelling of wood of which sieve-frames are composed are completelyavoided. In order that the advantages of this construction may be fullysecured, the blocks 37 are slightly longer than the width of the innerand outer sieve-walls between which they are placed, but not quite solong as the width of said walls and the thickness of the packing-stripsadded together, so that the compressibility of said strips may beavailed of not only for the purpose of making air and dust tight joints,but also to compensate for the variations in the width of the walls, asthey shrink and swell slightly under the influence of the weather. Thecorner-blocks 37 are always permitted to remain in contact and thepurpose stated accomplished.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination, in a separating and bolting machine, of a series ofsieves having corner-blocks formed of endwise wood slightly longer thanthe width of the sieve-walls and arranged to rest upon each other whenassembled thus forming practically continuous posts from the top to thebottom of the set of sieves, said sieves being each provided withelastic compressible packing-strips filling the interstices between thesieves when assembled and rendering the assembled structuresubstantially air and dust tight at the sides, substantially as shownand described.

2. The combination, in a separating and bolting machine, with the frameor shell, of a series of sieves mounted therein each sieve having innerand outer walls arranged near each other at sides thereof, the spacesbetween the inner and outer walls forming passage-ways for the dischargeof the stock being treated, said sieves being equal in length and widthand reversible in position whereby passage-ways at any of the varioussides and of a length equal to the thickness of any desired number ofsieves may be provided, substantially as set forth.

3. The combination, in a separating and bolting machine, of a series ofsieves of equal length and width, each of said sieves having duplexWalls along certain of their sides, and each sieve being shiftable inrespect to the others, whereby passage-ways at any of the various sides,and within the sieve structures, may be variably provided, substantiallyas set forth.

4:. The combination, in a separating and bolting machine, of the frameor shell, and a series of sieves mounted therein, said sieves havingdouble walls with passage-ways between, and certain of said sieveshaving turnout-shelves whereby thestock may be discharged either throughthe passage-ways in the sieve structures or out into passage-ways in theframe or shell of the machine, substantially as and for the purposes setforth.

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 23d day of September, A. D. 1901.

DANIEL W. MARMON. [L. s]

Witnesses:

CHESTER BRADFORD, L. H. CoLvIN.

ICC

